Feature/issue 2672 searching indicator (#164)

* Add visible searching indicator to Find Usages dialog

Closes robotframework#2672

The 'searching...' indicator is now shown as the first row in the
results table, making it more visible to users who focus on the
table rather than the dialog title.

* Make visible spaces and newlines in Text Editor. (robotframework#3026)

* Add options to make visible spaces and newlines in Text Editor.

* Fix 'General' settings not available after upgrade (blocks startup) (robotframework#3013)

- Add migration from settings version 8 to 9 that ensures General section exists with all required keys
- Add safe access to General settings in application.py, mainframe.py, treeplugin.py, and dialog.py
- Use .get() with fallback values instead of direct dictionary access
- This prevents KeyError when user settings file is missing or corrupted

Closes robotframework#3000

* Enable visible spaces and newlines in External/Code Editor.

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Co-authored-by: ChelSlava <chelslava@gmail.com>

* Restore wrongly deleted test fixture

* Add ChelSlova PR to improve visibility off Search in Find Usages

---------

Co-authored-by: ChelSlava <chelslava@gmail.com>

Author: HelioGuilherme66

CHANGELOG.adoc

@@ -17,6 +17,7 @@ and this project adheres to http://semver.org/spec/v2.0.0.html[Semantic Versioni
 - Fixed exception seen in console when selecting Tools->Library Finder... on a clean install.
 
 === Changed
+- Improved visibility of the Search action in *Find Usages* by adding ``Search...`` on the first row of the results table.
 - Changed isbinary to be internal library, instead of being dependency.
 
 

README.adoc

@@ -46,7 +46,7 @@ Likewise, the current version of wxPython, is 4.2.5, but RIDE is known to work w
 
 `pip install -U robotframework-ride`
 
-(3.9 <= python <= 3.14) Install current development version (**2.2.3dev4**) with:
+(3.9 <= python <= 3.14) Install current development version (**2.2.3dev5**) with:
 
 `pip install -U https://github.com/robotframework/RIDE/archive/develop.zip`